<https://www.thefreshcooky.com/bangers-mash-with-stout-gravy/#recipe>
<http://schema.org/recipeIngredient>
"1 cup stout (I used Left Hand Milk Stout, but try Guinness, Porter, another Stout/dark beer, or beef broth)"
<https://www.thefreshcooky.com/bangers-mash-with-stout-gravy>